Positioning mechanism for mobile power supply shell trepanning

The utility model discloses a positioning mechanism for tapping of a mobile power supply shell. The device comprises an objective table, a placement base, a clamping assembly, an ejection mechanism and a linear driving module, the objective table is in sliding connection with the linear driving module; the placing base is fixedly arranged on the upper surface of the objective table; a mobile powersupply shell profiling groove is formed in the containing base in a sectioned mode, the clamping assembly comprises two pneumatic clamps, the two pneumatic clamps are correspondingly arranged on thetwo sides of the top of the containing base, the ejection mechanism comprises an ejection plate and a power source, the ejection plate is arranged at the bottom end of the interior of the profiling groove, and an ejection shaft of the power source penetrates through the objective table and the containing base to be fixedly connected with the profiling groove. According to the utility model, the to-be-perforated mobile powe